PURIFY™ Aroma Essential Oil Diffuser Large Capacity and Great Mist Output: This aroma diffuser can hold up to 400ml of water Add drops of your favorite essential oil to give your room a fresh lovely fragrance 7 Soothing LED Light:The color can be cycled through or set it to one fixed color. Timer Setting and Mist Control: 4 timer- 1H/ 3H/ 6H/ Continuous modes creates a calming and romantic atmosphere. Super Quiet:Adopted ultrasonic technology, this diffuser is extremely quiet when working.